(I was really surprised that actual USA is building cities the same way SimCity modeled - with complete separation between commercial and residental areas).
I think Skylines did a good job of modelling complex traffic, but when I came back to it a month or two ago, I was disappointed by how much it felt like I was steered towards creating a "city of the past" and not engaging with any new technological or economic developments. Like, you can build an Amsterdam-like bike city in Skylines, with the appropriate DLC, but it's not modelled in a fine-grained way and just feels like you have magicked away commuter traffic by dumping bike lanes everywhere.
In the end, if I want to plan a city of the future, I should probably go back to drawing on graph paper like when I was 8 years old.
If you optimize the fun of the game by breaking it (and that's usually rather easy), you'll just... not have fun with it. This is why I personally prefer to avoid using broken strategies and set my own fun challenges to build themed cities.
Which is why I kinda wish there was more variety in Skylines - besides Vancouver, I also want to make messy cities like Shenzen or Bangkok, or London and maybe deal with local limits and idiosyncrasies.
Magnasanti
In Cities: Skylines, you start in 2010 as I recall. Not only is it rather more implausible to start a city in the wilderness then than in 1900, but you have idiots tweeting at you - forever.
I'd love to see a city builder where the challenge wasn't about urban planning, but in adapting to a changing world. ("Then came the trains, then came the ore, then there was the hard times, then there was a war")
https://www.secfin.com/private-money-blog/2021/12/15/the-ris...
And if you haven’t read anything by Jane Jacobs, it’s worthwhile checking out her books written (1950-1960) about the importance of city neighborhoods from the perspective of NYC urban dwellers.